Delta MH300 Series - Page 895

Chapter 16 PLC Function ApplicationsMH300
16-32
Example
LD X0
X0
Y0
CNT C0 K5
X1
RST
C0
C0
Figure 16-52
RST C0
LD X1
CNT C0 K5
LD C0
OUT Y0
1. When X0 = ON
and the RST command is
executed, the current value of C0 reverts to
0, and the output contact reverts to OFF.
2. When X1 switches from OFF to ON
, the
current value of the counter
is incremented
by one (add one).
3. When the count in
C0 reaches the set
value K5, the contact C0 switches to ON
,
and the current value of C0 = setting
value
= K5. Afterwards,
additional changes in X1
do not affect the count value, and
C0
remains at K5.
X0
X1
0
1
2
3
4
5
0
Cont
acts Y0, C0
C0
present
value
settings
Figure 16-53